WIRELESS BASE STATION, USER TERMINAL, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD

Title:

WIRELESS BASE STATION, USER TERMINAL, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD

Document Type and Number:

WIPO Patent Application WO/2014/136511

Kind Code:

A1

Abstract:

The purpose of the present invention is to obtain traffic-adaptive gain while mitigating inter-cell interference, in a wireless communication system in which time division duplexing (TDD) is used. In this wireless communication system, each wireless base station in a cluster uses an UL/DL configuration to communicate with user terminals. The wireless communication system is provided with: a subset selection unit which selects, from among a plurality of subsets respectively including a plurality of UL/DL configurations determined on the basis of the number of fixed subframes having a fixed transmission direction in the cluster, a subset to be used in the cluster; and an UL/DL configuration selection unit which selects, from among the plurality of UL/DL configurations included in the selected subset, an UL/DL configuration to be used to communicate with the user terminals.

Inventors:

NAGATA SATOSHI (JP)
NA CHONGNING (CN)
HOU XIAOLIN (CN)
HARADA ATSUSHI (CN)

Application Number:

PCT/JP2014/052300

Publication Date:

September 12, 2014

Filing Date:

January 31, 2014

Export Citation:

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Assignee:

NTT DOCOMO INC (JP)

International Classes:

H04W16/10; H04L5/16; H04L5/18; H04W72/04

Foreign References:

JP2001523931A

2001-11-27

Other References:

QUALCOMM INCORPORATED: "Interference mitigation schemes", 3GPP TSG RAN WG1 MEETING #72 R1- 130586, 19 January 2013 (2013-01-19)
MEDIATEK INC.: "Interference Mitigation Schemes for LTE Adaptive TDD Systems", 3GPP TSG-RAN WG1 MEETING #72 RL-130215, 19 January 2013 (2013-01-19)